505550027550 has 24 divisors (see below), whose sum is σ = 1253764068696. Its totient is φ = 134813340640.

The previous prime is 505550027519. The next prime is 505550027603. The reversal of 505550027550 is 55720055505.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 505550027499 and 505550027508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1685166609 + ... + 1685166908.

It is an arithmetic number, because the mean of its divisors is an integer number (52240169529).

Almost surely, 2^505550027550 is an apocalyptic number.

505550027550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505550027550 is an abundant number, since it is smaller than the sum of its proper divisors (748214041146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505550027550 is a wasteful number, since it uses less digits than its factorization.

505550027550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370333532 (or 3370333527 counting only the distinct ones).

The product of its (nonzero) digits is 218750, while the sum is 39.

The spelling of 505550027550 in words is "five hundred five billion, five hundred fifty million, twenty-seven thousand, five hundred fifty".